Molar Mass of CaI2 (Calcium Iodide)

Molar Mass Calculator

What is the molar mass of CaI₂?

Answer

M(CaI₂) ≈

293.88 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — I: 126.90.

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Cacalcium	1	40.078	40.078 w ≈ 13.64%	≈ 13.64%
Iiodine	2	126.90	253.80 w ≈ 86.36%	≈ 86.36%
Σ = 293.878 ≈ 293.88 g/mol w = 100%				100%

Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)

Mass fractions of the elements

I 86.36%

Ca 13.64%

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Molar masses of substances nearby

Formula	M, g/mol
ZnSO₄·7H₂O (zinc sulfate heptahydrate)	287.54
CaWO₄ (calcium tungstate)	287.91
C₁₂H₂₅NaO₄S (sodium lauryl sulfate)	288.38
CaI₂ (calcium iodide)	293.88
K₂Cr₂O₇ (potassium dichromate)	294.181
HgSO₄ (mercuric sulfate)	296.65
BaBr₂ (barium bromide)	297.14

FAQ

What is the molar mass of CaI2?

M(CaI₂) ≈ 293.88 g/mol

How to calculate the molar mass of CaI₂?

Add up the atomic weights of all the atoms in the formula: 40.078 + 2 × 126.90 = 293.878 ≈ 293.88 g/mol.

How many grams are in 2 moles of CaI₂?

m = n × M = 2 mol × 293.88 g/mol = 587.76 g.

See Also